5. Brian Jensen

For around a decade, the goalkeeper was a stalwart of the Clarets team. Although his position in the pecking order fluctuated at times, he missed just one game during their promotion-winning campaign in 2009 and was an ever-present during their season in the top flight, winning plenty of plaudits despite their relegation. Any player who signs on a free before making over 300 appearances with the club deserves to be in contention to make the top five.

4. Charlie Austin

Austin proved to be an excellent addition to the Burnley squad when he joined in 2011, despite having not played in the second tier before his move to Turf Moor. His strike-rate of one goal in every two games was hugely impressive, but the Clarets failed to capitalise on his goals before he left, hence why he sits lower down on the list.

3. Robbie Blake

While Blake's first spell with Burnley was impressive, it is perhaps his second spell that will be remembered more fondly. He was the team's third highest goalscorer in the Championship during the 2008/09 season as the Clarets secured promotion, and he followed that up with just two goals in the top flight. However, one will live long in the memory as it was a stunning volley that led them to a 1-0 win over Manchester United.

2. Graham Alexander

Burnley fans would be forgiven for not expecting much when a 35-year-old Alexander made the move from Preston North End to the Clarets. However, the defender enjoyed perhaps the best spell of his career at Turf Moor. His ability from the penalty spot meant that he managed an incredibly impressive seven goals in 33 games in the Premier League.

1. Tom Heaton

Tom Heaton is now considered to be one of the finest goalkeepers in the top flight currently, so it should go down as one of the best pieces of business Burnley have ever pulled off to land him on a free transfer in 2013 (via BBC Sport). Before this season, he had not missed a single league game in any of the previous three campaigns, helping the side to two promotions along the way. His form will be deemed as a key reason for their survival if they manage to stay up this year.